package oop.part10.java;
/**
 * 接口的应用：代理模式
 */
public class NetWorkTest {
  public static void main(String[] args) {
    Server server = new Server();
    //		server.browse();
    ProxyServer proxyServer = new ProxyServer(server);

    proxyServer.browse();
  }
}

interface NetWork {

  public void browse();
}

// 被代理类
class Server implements NetWork {

  @Override
  public void browse() {
    System.out.println("真实的服务器访问网络");
  }
}
// 代理类
class ProxyServer implements NetWork {

  private NetWork work;

  public ProxyServer(NetWork work) {
    this.work = work;
  }

  public void check() {
    System.out.println("联网之前的检查工作");
  }

  @Override
  public void browse() {
    check();

    work.browse();
  }
}
